Item |
Details |
Product Name |
Black Drum Main Charging Assembly (Large) for Canon imagePRESS C700/C750 |
OEM Part Number |
FM0-1461-000 (Large Main Charging Roller Assembly, K Only) |
Applicable Machine |
Canon imagePRESS C700, C710, C750, C800, C810, C850, C910, V700, V800, V900 (Black Drum Unit Exclusive) |
Product Type |
Large Size Primary Charging Integrated Assembly (Complete with Bracket & Insulation Cover) |
Core Material |
Conductive Elastic Rubber Layer + Precision Metal Shaft + High-pressure Insulation Plastic Bracket |
Rated Lifespan |
600,000 Pages (A4, 5% Coverage, ISO/IEC 19752 Standard) |
Core Function |
Uniform high-voltage electrostatic charging for black OPC drum, stabilize latent image potential, standardize black tone density |
Condition Grade |
Original Disassembled / 100% Machine Tested / No Damage & No Aging Deformation |
Origin |
Original Japan Disassembled |
Core Features
Original Large-Size OEM Structure: Matches the official large-diameter charging roller specification for C700/C750
black drum, larger
contact area than the small version, delivers more uniform charging effect for high-speed production printing.
Calibrated Conductive Performance: Original disassembled core roller retains factory conductivity parameters,
no resistance drift, ensures consistent electrostatic potential across the entire OPC drum surface.
Integrated Protective Bracket: Comes with original insulation cover, positioning frame and conductive terminal assembly;
fully pre-assembled, plug-and-play without secondary modification.
Anti-Aging Rubber Formula: Resists ozone erosion and long-term high-temperature aging inside the machine, avoids surface
hardening, cracking and conductive attenuation during the 600K service cycle.
Strict Pre-Sale Testing: All disassembled assemblies undergo high-voltage test, resistance detection and on-machine print
verification; eliminate shaft runout, local charging failure and hidden aging defects.
Drum-Safe Contact Design: Optimized surface roughness and hardness, fits the OPC drum perfectly without scratching the
drum surface, effectively extending the overall drum unit service life.
Common Failure Symptoms (Need Replacement)
Whole-page gray background fog and base toner residue caused by uneven drum charging potential
Periodic horizontal density bands & inconsistent black tone due to local charging roller resistance abnormality
Black print ghost images and residual latent images after long-run continuous printing
Charging high-voltage error code triggered by aging conductive terminal or insulation damage
Surface glaze, hardening and conductive layer wear leading to sharp drop of charging efficiency
Canon official maintenance recommendation when black drum unit reaches 600K page mileage
Installation & Handling Notes
Cut off machine power and release high-voltage residual electricity before replacement to prevent electric shock and high-voltage board damage
Do not touch the rubber surface of the charging roller with bare hands; oil contamination will cause local charging failure and print fog
Clean the roller surface with dedicated non-alcohol electrostatic cleaning cloth before installation, remove dust and residual toner
Align the original positioning holes during assembly, ensure accurate contact pressure between charging roller and OPC drum
Perform drum unit potential calibration and test print after installation to stabilize black density output
Matching Related Parts
Black OPC Drum Core
Black Drum Cleaning Blade
Black Drum Frame
Black Drum Unit High Voltage Board
Waste Toner Seal Assembly
T01 Black Toner Cartridge
×
EN
